Ore-concentrating table.



No. 850,391. v PATENTED APR. 16, 1907. H. D. MoLBOD.

ORE GONGENTRATING TABLE.

APPLICATION FILED FBB.8, 1905.

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3 SHEETS-SHEET 1.

No. 850,391. PATENTED APR.16, 1907. H. D. MoLEOD. ORE OONOENTRATING TABLE.

APPLICATION FILED FEB. B, 1905.

3 SHEETS-SHEET 2.

. yarn w Howmzn D. MfL son No. 850,391. PATENTED APR. 16, 1907. H. D. McLEOD. ORE GONGENTRATING TABLE.

APPLICATION FILED FEB,8, 1905. 4

3 SHEETS-SHEET 3.

MI! NH Hownnn DMELEon To all whom it m ay wncern:

HOWARD D. McLEOD, or GREAT FALLS, MONTANA.

ORE-CYONCENTRATING TAB-LE.

I No. 850,391.

Specification of Letters Patent. 7

Patented April 16, 1907.

Application filed February 8, 1905. Serial No. 244,723.

Be it known that I, HOWARD D. McLnoD, a citizen of the United States, residing at Great Falls, in the county of Cascade and State of Montana, have invented certain new and useful Improvements in Ore-Concentrating'LTables, of which the following is a speci fication.

My invention relates to improvements in the class of ore-con'centratorsknown as the Rittinger type, where the feed is introduced at the end-of one side of a nearly-horizontal table or plane and is concentrated under the influence of a horizontal vibration and the cross-wash of water so that the values being separated out bygravity may be conducted in one direction and saved; while the ganguefis discharged in another direction,

horizontal vibration of the latter,

being carried away by the washing-water.

My invention comprises a plurality of tables or planes one placed directly above the other and acting in series on the same mass of material and of novel means for support ing said planes and for giving them the requisite vibratory motion.

It further consists of details of construc tion, which will appear in the description of the device.

Figure 1 is a top plan view of an ore-concentrating device embodying -myinvention. Figs. 2 and 3 are front and end elevations of the device. Fi 4 is a partial perspective view of the tab e, its position being the reverse of that shown in Fig. 1.

1 designates a deck or table used for the roughing outor preliminary classification of material-t0 be treated. It is of smaller size than the main table 2 and may be supported inany desired manner so that it occupies a position immediately above the head end of the main table. it is preferably directly mounted on the main table, so as to share the I have shown it as detachably supported by means of a vertically-adjustable leg 11 at its feed side and a rod 12, pivotally mountedin brackets 13, at its discharge side. This preliminary deck or table 1 is preferably provided with the usual longitudinal riflles 14 and feed-box 15. At its tail end it has a launder l6, discharging into the usual launder on the main table'iZ. At-the head end of the discharge side of the deck 1 is an inclined launder 17, while the tail end of this side has a projecting apron 18, these parts being clearly shown in Fig. 4.,

I prefer to extend the riflles 14 and 25, as shown, to the extremeend of the deck or table 1 and of the main table 2. This arrangement maintains the stratification. so that when values of different specific gravities occur they may be easily caught in different receptacles. 'l he operation of this portion of my invention has already been indicated. It is clear that the pulp feed from the pipe 3 into the feed-distrlbutin box 15 is spread over the feed side of the %leck 1.. By means of the adjustable'leg 11 the inclination of the deck may be arranged as desired. It is also clear that under the lon itudinal vibration of the deck the coarser va use or enriched min erals will work their way into the transverse launder 16 and will be washed by the spray from the pipe 31 into the main launder 26 of the table 2.. At the same time the gangue and the coarser of the'remaining metals will pass to the tail end of-the deck overthe apron 18 and into the main feed-box 23 at the head of the table 1, while the slime and lighter p01- tions will be discharged by the inclined launder 17 into the feed-box 24, thence to the ta ble 1 in advance of the relatively coarse portions. The further movement of the mateterial and the complete separation of the values from the gangue is accomplished in the usual manner.

Figs. 2 and 3 of the drawings show my novel means for, producing the desired longitudinal vibration of the table 2, while e ciently preventing the trembling or vert1cal vibration which is so destructive to perfect separation. As shown, the table 2 is supported on a plurality of legs 4, pivotally attached at their up or ends to lugs 41 on the table and at their ower ends to similar'lugs 42 on. a frame 5, which obviously may be any part of the building, but which, as shown, is a separate frame and is firmly bolted to the floor of the building. i have shown each leg 4 as composed of twolengths of rod threaded at their adjacent ends and united by a turn buckle 43, by means of which the ength of each leg may be se arately and accurately adjusted, and the The range of legs 4 at one side of the table 2as shown the feed side-is secured'to the frame through bell-crank levers '51, pivoted to the 9 frame at their elbows, their upper arms being all pivoted to a horizontal rod 52. Any de sired means (not shown) may be employedto' longitudinally adjust the rod 52 and to mamtain it in its adjusted position. It is plaln that the transverse inclination or tilt of the table 2 may be in this way altered as desired by a single-operation and without buckling or distorting it; Transverse braces 53 (shown in Fig. 3) may be employed to prevent rackingof the legs 4..

A connect ng rod or link 6 extends from the table 2 to any desired means for producing rapid vibration. I have shown the pre: ferred means to this end in my'fipendmg application, Serial No. 215,725, ed Ju y 8., 1904; but any we'll-known vibrating engine may be employed. To prevent stram on the table, I preferably carry beneath it a rod ,61, pivotally attached at one end to the link ti, passing through and firmly secured to each of several cross beams or ribs 27 on the lower side of the table 2'and to a cross-bar 62 at the lower end of the table. To the cross-bar 62 is pivoted one end of the lever 63, journaleci on a rod 64, which is mounted in'brackets 54 on the frame 5. A spring'65 connects the lower end of the lever 63 to a stationary part of the frame 5 an rl tends to maintain the table 2 at one end of its path of vibration.

Among the advantages of my device may be noted the saving of floor-space by a series of vibratory classifying-tables one directly above the other, operating successively or in series on the same mass of material; economy of operation caused by the discharge of the classified material from the deck to the main table in their inverse'order. i. (2., with the heavier materials near the head end of the table; simplicity, gained by connecting the two or more classifyingtables to move in unison; absolute smooth-- ness of vibration, due to the tying down of the table at several points to a solid frame, whereby vertical movement is eliminated; individual adjustability of each leg or support by which any buckling on the table may be corrected; simultaneous and equal adjustment of the transverse inclination of the table, and ease of making these various adjustments, which can, indeed, be made without stop ing the movement of the table.

It is o vious that certain parts of my device may be advantageously employed without the others, that the number of tables to be superimposed is not limited except by the requirements in each case, and that many other alterations may be made in the device without departing from my invention.

Havingthus described my invention, and without limiting myself. to the constructionble, said supports being shown and described nor enumerating equivssosei alents, what I claim as new therein, and desire to secure by Letters Patent, is-

1-. An ore-concentrating device comprising a vibratory table, astationary rigid frame beneath said vibratory table, aplurality of inflexible bodily-adjustable supports positively secured both to said table and to said frame for resisting both tensile and compressive strains, and means for simultane-. ously and equally bodily, whereby the istance' between said table and said frame may be altered.

djusting said supports 2. An ore-concentrating'device comprising a vibratory table,.a plurality of sep longitudinally bodily adjustable supports at one side, of said table, a sta'-' I arately, lnflexible tionary rigid frame beneath said table, and

operative connections between the uppgr ends of saidsupports and said table an tween the. lower ends of said supports and said frame for? maintaining said supports either in tension or in compression.

3. An ore-concentrating device comprising a vibratory table,

a stationary rigid frame beneath said table, a pluralit Y of series of separately, longitudinally bodily adjustable inflexible supports between saidftable and said frame for resisting both tensile and compressive strains, and means for vertically and bodily adjusting one side of said table through one series of said supports independently of the other series, said adjusting means being operative while the tab sis in vibration.

4. An ore-concentrating device comprising a a table, a stationary rigid frame beneath.

said table, a series of adjustable inflexible supports at each side of said frame and extending to said table, saidsupports to said tabjle.for,resisting both tensile and compressive strains, and means for simultaneously and equally adjusting the length of all of the supports in one of said series.

being ,pivotally attached both to-said frameand- 5. An ore-concentrating device comprising a table, a stationary rigid frame beneath said table, a series of inflexible supports at each side of said frame and extending to said table, said supports beingpivotally attached both to said frame and, to saidtable for resisting both tensile and compressive strains, means for simultaneously and bodily adjusting the length of the supportsin one of said series, and independent means for separately adjusting the'length of each 'of thesupports in said series.

6. An ore-concentrating device comprising a table, a stationary rigid frame beneath said side of said frame and extending to said tapivotally attached both to said frame and to said table for resisting both tensile and compressive strains,

table, a series of inflexible supports at .each

each of the supports of one of said series be- V en ear side of said frame and extending to said table, said supports being pivotally attached both to said frame and to said table for re sisting both tensile and compressive strains and also for resisting lateral movement of 7 said table, and pivoted braces between said table and said frame for additionally resisting lateral movement of the table.

8. An ore-concentrating device comprising a table, a stationary rigid frame beneath said table, a series of inflexible supports at each side of said frame and extending to said table, said supports being pivotally attached both tosaid frame and to said table for resisting both tensile and compressive strains,

and transverse braces pivoted to said frame andsecured to said supports adjacent to their upper ends for additionally resisting lateral movement of the table.

9. An ore-concentrating device comprising a vibratory table, a stationary rigid frame beneath said table, a series of inflexible supports at each side of said table and extending to said frame for resisting both tensile and compressive strains, said supports being so transversely pivoted to one of said parts as longitudinal vibration and lateral adjust-' to permit longitudinal vibration, and so pivoted to the other of said parts as to permit ment of the table, the series of supports at one side of said table being longitudinally adjustable, for the purpose specified.

10. An ore-concentrating device compris-' ing a vibratory table, a stationary rigid frame beneath said table, a series of inflexible supports at each side of said table and extending to said frame for resisting both ten- 'sile and compressive strains, said supports being so transversely pivoted to said frame as to permit longitudinal vibration, and so pivoted to said table as to permit longitudinal vibration and lateral adjustment of the table, the series of su ports at one side of said table "being longitudinally adjustable, for the purposes specified.

11. An ore-concentrating device comprising a vibratory table, a stationary rigid frame beneath said table, a series of inflexible supports at each side of said table, and

extending to said frame, said supports being .so transversely pivoted to one of said parts as to permit longitudinal vibration and so pivoted to the other of said parts as to permit longitudinal vibration and lateral adjustment of the table, said supports being p0sitively' attached both to said frame and said table to resist both tensile and compressive strains, for the purposes specified.

12. An ore-concentrating device compristion and lateral adjustment of the table, said.

supports being positively attached both to san frame and said table to resist both tensile and compressive strains, the series of supports at one side of said table being longitudinally adjustable, for the purposes specified.

l3. An ore-concentrating device comprising a vibratory table, a stationary rigid -franie beneath said. table and a series of inflexible supports at each side of said table for resisting both tensile and compressive strains'and comprising legs so transversely pivoted to one of said parts as to permit longitudinal vibration, and lugs transversely pivoted to said legs and longitudinally pivoted to the other of said parts. the series of supports at one side of said table being 1ongitudinally adjustable, whereby the lateral inclination of the table maybe adjusted, for the purposes specified.

14. An ore-concentrating device comprising a vibratory table, a stationary rigid frame beneath said table, a series of inflexible supports at each side oi'said table and extending to said frame for resisting both tensile and compressive strains, said supports being so transversely pivoted to one of said parts as to permit lon itudinal vibration, and so pivoted to the other of said' arts as to permit longitudinal vibration a lateral adjustment of the; table, and means for simultaneously and equally adjusting the length of the supports in one of said series, for the purposes set forth.

15. An ore-concentrating device comprise ing a vibratory table, a stationary rigid frame beneath said table, a series or inflexible supports at each side of said table and extending to said frame for resisting bot-h tensile and compressive strains, said supports being so transversely pivoted to one of said parts as to permit longitudinal vibration and so pivoted to the other of said arts as to permit longitudinal vibration and ateral ad justment ofthe table, means for simultaneously and equally adjusting the length of the supports in one of said series, and means for separately adjusting the length of each of the supports in said series, for the purposes set forth.

16. An ore-concentrating devicecomprismg a vibratory table, a stationary rigid irame 'b'eneath said table, a series of inflexible supports at each side of said table for resisting both tensile and compressive strains and comprising legs so transversely pivoted to one of said parts as to permit longitudlnal vibration and lugs transversely pivoted to specification in the presence of two subscribsaid legs and longitudinakly pivoted to the ing witnesses.

other of said parts. each 0 the legs in'one of o said series being composed of two'threaded HOWARD MGLEOD? 5 portions united by a turnbuckle, for the pur- Witnesses:

poses set forth. W. A'. (WEBSTER,

In testimony whereof I have signed this C. OAPRON. 

